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https://www.readbyqxmd.com/read/28926807/ambient-temperature-and-risk-of-cardiovascular-events-at-labor-and-delivery-a-case-crossover-study
#1
Sandie Ha, Kelly Nguyen, Danping Liu, Tuija Männistö, Carrie Nobles, Seth Sherman, Pauline Mendola
BACKGROUND: Extreme ambient temperatures are linked to cardiac events in the general population, but this relationship is unclear among pregnant women. We estimated the associations and attributable risk between ambient temperature and the risk of cardiovascular event at labor/delivery, and investigated whether these associations vary by maternal race/ethnicity. METHODS: We identified 680 women with singleton deliveries affected by cardiovascular events across 12 US sites (2002-2008)...
September 16, 2017: Environmental Research
https://www.readbyqxmd.com/read/28923660/factors-influencing-short-term-outcomes-for-older-patients-accessing-emergency-departments-after-a-fall-the-role-of-fall-dynamics
#2
Caterina Trevisan, Patrizia Di Gregorio, Eugenio Debiasi, Martina Pedrotti, Mario La Guardia, Enzo Manzato, Giuseppe Sergi, Albert March
BACKGROUND: While the relevance of falls in raising the risk of fractures, hospitalization and disability in older age is well recognized, the factors influencing the onset of fractures and the need for ward admission after a fall have yet to be fully elucidated. We investigated which factors and fall dynamics were mainly associated with fall-related injuries and hospitalization among elderly persons accessing the Emergency Department (ED) following a fall. METHODS: The study involved 2144 older subjects who accessed the ED after a fall...
September 13, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28917737/3-4-diaminotoluene-sensor-development-based-on-hydrothermally-prepared-mncoxoy-nanoparticles
#3
Mohammed M Rahman, M M Alam, Abdullah M Asiri, M A Islam
A facile hydrothermal process was used to prepare MnCoxOy nanoparticles (NPs) in alkaline medium (pH~10.5) at room temperature. The NPs were characterized by Fourier-transform infrared spectroscopy (FTIR), ultraviolet visible spectroscopy (UV/vis), field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), energy-dispersive X-ray spectroscopy (EDS), and powder X-ray diffraction (XRD). A thin layer of NPs film as a chemical sensor was fabricated on a glassy carbon electrode (GCE) with the help of a conducting binder...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28916458/molecular-identification-of-waterborn-free-living-amoebae-acanthamoeba-naegleria-and-vermamoeba-isolated-from-municipal-drinking-water-and-environmental-sources-north-half-of-iran
#4
Ehsan Javanmard, Maryam Niyyati, Jacob Lorenzo-Morales, Zohreh Lasjerdi, Hamed Behniafar, Hamed Mirjalili
The present study tested 80 samples of municipal, geothermal and recreational water samples for the occurrence of waterborn free living amoebae (FLA) including Acanthamoeba, Balamuthia mandrillaris, Vahlkampfiids and Vermamoeba in Semnan province, North half of Iran. Four sets of primers including JDP1,2 primers, ITS1,2 primers (Vahlkampfiids), 16S rRNABal primers (Balamuthia mandrillaris) and NA1,2 primers (Vermamoeba) were used to confirm the morphological identification. From the 80 water samples tested in the present study, 16 (20%) were positive for the outgrowth of free living amoebae based on the morphological page key...
September 12, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28915320/adipose-tissue-as-a-site-of-toxin-accumulation
#5
Erin Jackson, Robin Shoemaker, Nika Larian, Lisa Cassis
We examine the role of adipose tissue, typically considered an energy storage site, as a potential site of toxicant accumulation. Although the production of most persistent organic pollutants (POPs) was banned years ago, these toxicants persist in the environment due to their resistance to biodegradation and widespread distribution in various environmental forms (e.g., vapor, sediment, and water). As a result, human exposure to these toxicants is inevitable. Largely due to their lipophilicity, POPs bioaccumulate in adipose tissue, resulting in greater body burdens of these environmental toxicants with obesity...
September 12, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28912356/biomarkers-of-disease-can-be-detected-in-mice-as-early-as-4-weeks-after-initiation-of-exposure-to-third-hand-smoke-levels-equivalent-to-those-found-in-homes-of-smokers
#6
Neema Adhami, Yuxin Chen, Manuela Martins-Green
Third-hand smoke (THS) is a newly discovered environmental health hazard that results from accumulation and aging of second-hand smoke (SHS) toxins on surfaces where smoking has occurred. Our objective was to determine whether there is a time-dependent effect of THS exposure on health. Using an in vivo exposure mouse system that mimics exposure of humans to THS, we investigated its effects on biomarkers found in serum, and in liver and brain tissues. Mice were exposed to THS for 1, 2, 4, or 6 months and brain, liver, and serum were collected...
October 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28911326/borrelia-infection-and-risk-of-celiac-disease
#7
Armin Alaedini, Benjamin Lebwohl, Gary P Wormser, Peter H Green, Jonas F Ludvigsson
BACKGROUND: Environmental factors, including infectious agents, are speculated to play a role in the rising prevalence and the geographic distribution of celiac disease, an autoimmune disorder. In the USA and Sweden where the regional variation in the frequency of celiac disease has been studied, a similarity with the geographic distribution of Lyme disease, an emerging multisystemic infection caused by Borrelia burgdorferi spirochetes, has been found, thus raising the possibility of a link...
September 15, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28900110/enhancement-of-environmental-hazard-degradation-in-the-presence-of-lignin-a-proteomics-study
#8
Su Sun, Shangxian Xie, Yanbing Cheng, Hongbo Yu, Honglu Zhao, Muzi Li, Xiaotong Li, Xiaoyu Zhang, Joshua S Yuan, Susie Y Dai
Proteomics studies of fungal systems have progressed dramatically based on the availability of more fungal genome sequences in recent years. Different proteomics strategies have been applied toward characterization of fungal proteome and revealed important gene functions and proteome dynamics. Presented here is the application of shot-gun proteomic technology to study the bio-remediation of environmental hazards by white-rot fungus. Lignin, a naturally abundant component of the plant biomass, is discovered to promote the degradation of Azo dye by white-rot fungus Irpex lacteus CD2 in the lignin/dye/fungus system...
September 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28898751/treatment-of-model-solutions-and-wastewater-containing-selected-hazardous-metal-ions-using-a-chitin-lignin-hybrid-material-as-an-effective-sorbent
#9
Przemysław Bartczak, Łukasz Klapiszewski, Marcin Wysokowski, Izabela Majchrzak, Weronika Czernicka, Adam Piasecki, Hermann Ehrlich, Teofil Jesionowski
A chitin/lignin material with defined physicochemical and morphological properties was used as an effective adsorbent of environmentally toxic metals from model systems. Particularly significant is its use in the neutralization of real industrial wastes. The ions Ni(2+), Cu(2+), Zn(2+) and Pb(2+) were adsorbed on the functional sorbent, confirming the high sorption capacity of the newly obtained product, primarily due to the presence on its surface of numerous active functional groups from the component biopolymers...
September 9, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28898116/adaptive-response-criteria-in-road-hazard-detection-among-older-drivers
#10
Jing Feng, HeeSun Choi, Fergus I M Craik, Brian Levine, Sylvain Moreno, Gary Naglie, Motao Zhu
OBJECTIVES: The majority of existing investigations on attention, aging, and driving have focused on the negative impacts of age-related declines in attention on hazard detection and driver performance. However, driving skills and behavioral compensation may accommodate the negative effects that age-related attentional decline places on driving performance. In this study, we examined an important question that had been largely neglected in the literature linking attention, aging, and driving: can top-down factors such as behavioral compensation, specifically adaptive response criteria, accommodate the negative impacts from age-related attention declines on hazard detection during driving? METHODS: In the experiment, we used the Drive Aware Task, a task combining the driving context with well-controlled laboratory procedures measuring attention...
September 12, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28895924/artificial-turf-contested-terrains-for-precautionary-public-health-with-particular-reference-to-europe
#11
Andrew Watterson
Millions of adults, children and teenagers use artificial sports pitches and playgrounds globally. Pitches are artificial grass and bases may be made up of crumb rubber from recycled tires or new rubber and sand. Player injury on pitches was a major concern. Now, debates about health focus on possible exposure and uptake of chemicals within pitch and base materials. Research has looked at potential risks to users from hazardous substances such as metals, volatile organic compounds, polycyclic aromatic hydrocarbons including benzo (a) (e) pyrenes and phthalates: some are carcinogens and others may be endocrine disruptors and have developmental reproductive effects...
September 12, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28892936/hazards-and-health-risks-encountered-by-manual-sand-dredgers-from-udupi-india-a-cross-sectional-study
#12
Sidhiprada Mohapatra, Alfiya Shaikh, Priyanka Nayak, Rajesh Navada
INTRODUCTION: Globalization and urbanization have resulted in an increased demand on sand dredging. Legal and environmental restrictions on automated dredging have led to a rise in manual technique. The working techniques and environment involved in manual sand dredging may expose the workers to multiple work related disorders. AIM: To determine the health risks and occupational hazards involved in manual sand dredging. MATERIALS AND METHODS: An assessment schedule was developed and content was validated by five experts for the study...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28892861/assessment-of-the-hazard-of-nine-doped-lanthanides-based-ceramic-oxides-to-four-aquatic-species
#13
Irina Blinova, Heiki Vija, Aljona Lukjanova, Marge Muna, Guttorm Syvertsen-Wiig, Anne Kahru
The risk of environmental pollution with rare earth oxides rises in line with increasing application of these compounds in different sectors. However, data on potential environmental hazard of lanthanides is scarce and concerns mostly Ce and Gd. In this work, the aquatic toxicity of eight doped lanthanide-based ceramic oxides (Ce0.9Gd0.1O2, LaFeO3, Gd0.97CoO3, LaCoO3, (La0.5Sr0.5)0.99MnO3, Ce0.8Pr0.2O2, (La0.6Sr0.4)0.95CoO3, LaNiO4) and one non-doped oxide (CeO2) with primary size from 23 to 590nm were evaluated in four short-term laboratory assays with freshwater crustaceans and duckweeds...
September 7, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28892856/leachate-breakthrough-mechanism-and-key-pollutant-indicator-of-municipal-solid-waste-landfill-barrier-systems-centrifuge-and-numerical-modeling-approach
#14
Shi Shu, Wei Zhu, Shengwei Wang, Charles Wang Wai Ng, Yunmin Chen, Abraham Chung Fai Chiu
Groundwater pollution by leachate leakage is one of the most common environmental hazards associated with municipal solid waste (MSW) landfill sites. However, landfill leachate contains a large variety of pollutants with widely different concentrations and biotoxicity. Thus, selecting leachate pollutant indicators and levels for identifying breakthrough of barrier systems are key factors in assessing their breakthrough times. This study investigated the transport behavior of leachate pollutants through landfill barrier systems using centrifuge tests and numerical modeling...
September 7, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28892846/caffeine-and-paraxanthine-in-aquatic-systems-global-exposure-distributions-and-probabilistic-risk-assessment
#15
J L Rodríguez-Gil, N Cáceres, R Dafouz, Y Valcárcel
This study presents one of the most complete applications of probabilistic methodologies to the risk assessment of emerging contaminants. Perhaps the most data-rich of these compounds, caffeine, as well as its main metabolite (paraxanthine), were selected for this study. Information for a total of 29,132 individual caffeine and 7442 paraxanthine samples was compiled, including samples where the compounds were not detected. The inclusion of non-detect samples (as censored data) in the estimation of environmental exposure distributions (EEDs) allowed for a realistic characterization of the global presence of these compounds in aquatic systems...
September 6, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28891954/assessment-of-heavy-metal-pollution-and-health-risks-in-the-soil-plant-human-system-in-the-yangtze-river-delta-china
#16
Bifeng Hu, Xiaolin Jia, Jie Hu, Dongyun Xu, Fang Xia, Yan Li
Heavy metal (HM) contamination and accumulation is a serious problem around the world due to the toxicity, abundant sources, non-biodegradable properties, and accumulative behaviour of HMs. The degree of soil HM contamination in China, especially in the Yangtze River Delta, is prominent. In this study, 1822 pairs of soil and crop samples at corresponding locations were collected from the southern Yangtze River Delta of China, and the contents of Ni, Cr, Zn, Cd, As, Cu, Hg, and Pb were measured. The single pollution index in soil (SPI) and Nemerow composite pollution index (NCPI) were used to assess the degree of HM pollution in soil, and the crop pollution index (CPI) was used to explore the degree of HM accumulation in crops...
September 10, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28891940/the-effects-of-socioeconomic-vulnerability-psychosocial-services-and-social-service-spending-on-family-reunification-a-multilevel-longitudinal-analysis
#17
Tonino Esposito, Ashleigh Delaye, Martin Chabot, Nico Trocmé, David Rothwell, Sonia Hélie, Marie-Joelle Robichaud
Socio-environmental factors such as poverty, psychosocial services, and social services spending all could influence the challenges faced by vulnerable families. This paper examines the extent to which socioeconomic vulnerability, psychosocial service consultations, and preventative social services spending impacts the reunification for children placed in out-of-home care. This study uses a multilevel longitudinal research design that draws data from three sources: (1) longitudinal administrative data from Quebec's child protection agencies; (2) 2006 and 2011 Canadian Census data; and, (3) intra-province health and social services data...
September 9, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28891685/risk-of-falling-in-a-stroke-unit-after-acute-stroke-the-fall-study-of-gothenburg-fallsgot
#18
Carina U Persson, Sigvar Kjellberg, Bodil Lernfelt, Ellen Westerlind, Malin Cruce, Per-Olof Hansson
OBJECTIVE: This study aimed to investigate incidence of falls and different baseline variables and their association with falling during hospitalization in a stroke unit among patients with acute stroke. DESIGN: Prospective observational study. SETTING: A stroke unit at a university hospital. SUBJECTS: A consecutive sample of stroke patients, out of which 504 were included, while 101 declined participation. METHODS: The patients were assessed a mean of 1...
September 1, 2017: Clinical Rehabilitation
https://www.readbyqxmd.com/read/28891003/contaminant-characteristics-and-environmental-risk-assessment-of-heavy-metals-in-the-paddy-soils-from-lead-pb-zinc-zn-mining-areas-in-guangdong-province-south-china
#19
Da-Mao Xu, Bo Yan, Tao Chen, Chang Lei, Han-Zhi Lin, Xian-Ming Xiao
In November 2016, the total metal concentrations in nine representative locations in lead (Pb)-zinc (Zn) mining areas, located in Guangdong Province, South China, were determined experimentally by flame atomic absorption spectrometer. The results indicated that the paddy soils were heavily contaminated with Cd (20.25 mg kg(-1)), Pb (1093.03 mg kg(-1)), and Zn (867.0 mg kg(-1)), exceeding their corresponding soil quality standard values and background values. According to the results, the mean enrichment factor levels of the studied metals decreased in the following order: Cd > Zn > Pb > Cu > Ni > Mn > Cr...
September 10, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28889864/the-transfer-of-diatoms-from-freshwater-to-footwear-materials-an-experimental-study-assessing-transfer-persistence-and-extraction-methods-for-forensic-reconstruction
#20
E A Levin, R M Morgan, K R Scott, V J Jones
In recent years there has been growing interest in environmental forms of trace evidence, and ecological trace evidence collected from footwear has proved valuable within casework. Simultaneously, there has been growing awareness of the need for empirical experimentation to underpin forensic inferences. Diatoms are unicellular algae, and each cell (or 'frustule') consists of two valves which are made of silica, a robust material that favours their preservation both in sediments and within forensic scenarios...
September 2017: Science & Justice: Journal of the Forensic Science Society
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